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According to the arrest report, Russell "Rusty" Smith, 40, allegedly poisoned a co-worker at Tavares High School because he was jealous over her recent promotion to lead custodian.

Authorities said on Monday, Jackie Hansell took a sip of her soda and immediately felt a burning sensation.

Tests showed someone poured floor stripper in her cup.

Smith refused to take a polygraph test, but did tell investigators they'd find his fingerprints on the victim's cup and the bottle of floor stripper.

He was arrested and charged with poisoning, a first-degree felony charge, and released on $25,000 bond.

Investigators said when his co-worker got a promotion instead of him, he retaliated.

"It could have been very, very bad for her,” Sgt. Fred Jones, with the Lake County Sheriff's Office, said. "Her eyes were watery. It was obvious she was in distress.”

The victim called for help after taking a sip from her cup and was rushed to the hospital.

According to court documents, a responding detective could smell a strong chemical odor coming from the cup.

When tested, pH level matched the pH for a floor stripping cleanser that the custodians use in the school.

"This is a chemical that's used to take the worst of the worst off the floors,” Jones said. "It's sad, and it's concerning when you get into a position where you're willing to go this far in a feud that could cost someone their life."

The victim is recovering.

Smith has been with the Lake County School District for three years. He's been reassigned to another location where officials said he won't have any contact with students and won't be allowed on any school campus.